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High-Performance Recuperator for Low-Temperature Turbo-Brayton Cryocoolers

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC19C0364
Agency Tracking Number: 193031
Amount: $124,961.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: S1
Solicitation Number: SBIR_19_P1
Solicitation Year: 2019
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-08-19
Award End Date (Contract End Date): 2020-02-18
Small Business Information
16 Great Hollow Road
Hanover, NH 03755-3116
United States
DUNS: 072021041
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Roger Hill
 (603) 643-3800
Business Contact
 Betsy Williams
Phone: (603) 643-3800
Research Institution

Future astrophysics missions require efficient, low-temperature cryocoolers to cool advanced instruments or serve as the upper-stage cooler for sub-Kelvin refrigerators. Potential astrophysics missions include Lynx, the Origin Space Telescope, and the Superconducting Gravity Gradiometer. Cooling loads for these missions are up to 300 mW at temperatures of 4 to 10 K, with additional loads at higher temperatures for other subsystems. Due to low jitter requirements, a cryocooler with very low vibration is needed for many missions. In addition, a multistage cooler capable of providing refrigeration at more than one temperature simultaneously can provide the greatest system efficiency with the lowest mass. Turbo-Brayton cryocoolers have space heritage and are ideal for these missions due to negligible vibration emittance and high efficiency at low temperatures. The overall size, mass, and performance of Brayton cryocoolers are highly dependent on the technology employed in the recuperative heat exchangers (e.g.,nbsp;recuperators). On the proposed program, Creare plans to develop an advanced compact, lightweight recuperator focused on the low temperature range of the Brayton cryocooler. In Phasenbsp;I, we will perform design trade-off assessments, fabrication trials, and demonstration testing. In Phasenbsp;II, we will build and demonstrate an advanced recuperator for cryocoolers operating at temperatures down to 4 to 10nbsp;K.

* Information listed above is at the time of submission. *

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